EP 0060327 B1 19850502 - DEVICE FOR ACOUSTICAL OR VISUAL GEAR SHIFTING
Title (en)
DEVICE FOR ACOUSTICAL OR VISUAL GEAR SHIFTING
Publication
Application
Priority
DE 3108920 A 19810309
Abstract (en)
[origin: US4438423A] A device for producing a shift instruction has three threshold switches (6, 7, 12) which are dependent on the rpm (speed of rotation). The first threshold shift (6) is connected via an AND gate (5) to an upshift signal indicator (9). This AND gate is conductive only when the gas pedal (1) is depressed less than 20% and the speed threshold of the first threshold transmitter (6) is reached. If the gas pedal (1) is depressed further, the upshift signal indicator (9) only lights up when the speed threshold of the third threshold switch, namely the maximum permissible speed of rotation is reached. The downshift signal indicator (11) lights up when the speed of rotation of the engine drops below the threshold of the second threshold switch (7). By this development shift instructions are given which sufficiently take into account the engine power of the vehicle without the necessity of measuring this engine power.
IPC 1-7
IPC 8 full level
B60Q 9/00 (2006.01); F16H 63/42 (2006.01); G01F 9/02 (2006.01)
CPC (source: EP US)
F16H 63/42 (2013.01 - EP US); G01F 9/023 (2013.01 - EP US); Y10S 74/07 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0060327 A1 19820922; EP 0060327 B1 19850502; AU 8049282 A 19820916; DE 3108920 A1 19820916; DE 3170331 D1 19850605; US 4438423 A 19840320
DOCDB simple family (application)
EP 81108864 A 19811024; AU 8049282 A 19820215; DE 3108920 A 19810309; DE 3170331 T 19811024; US 35097382 A 19820222